Order 1 Kit for each Axle you are Lifting.

If the springs are located under the axle please look at purchasing a over/under conversion kit instead which can be found here: Over/Under Conversion Kit.

Cross-Members - We recommend 1 cross-member at a minimum on the rear hangers to prevent leaverage, cracking or other issues already common with the rear leaf spring hangers. Lifting a trailer can cause more leaverage on these hangers when turning so we do recommend at least 1 cross member on the rear hangers for extra strength and stability. You can add up to 3 for the ultimate upgrade. (Look for hanger to hanger clearance and accessability drop down brakcet may be needed for sewage pipe clearance) MORryde X-Factor Crossmembers: X-Factor Crossmembers

 Features:

• Designed to fit 1 3/4" wide leaf springs

• Each 3" diameter axle kit comes with 9/16" Ubolts

• Each 2 3/8" diameter axle kit comes with 1/2" ubolts

• Our Lift blocks have a 5/8" hole and a 9/16" pin and are designed to fit all common/standard trailer leaf spring center bolts - if you have larger than standard center bolts in your leaf springs you may have to die grind out the hole to fit your oversized center bolts

• Our custom made lift blocks designed to lift and support as much weight as you can load on them

• Each kit includes the heaviest Ubolt plate available. it is 0.207 thick but the folds in the steel is what keeps the plates light, and very durable.

Each kit designed to service 1 axle and contains:

• 2 Lift blocks that are 1 3/4" wide, 4" long, and either 1", 2", or 3" tall.

• 2 Heavy Duty U-bolt plates

• 4 U-bolts with hardware to accommodate 3, 4, and 5 leaf springs at the new height with the blocks

• If you have 6, 7 or 8 leaf springs or a non-standard leaf spring setup you can order blocks and ubolt separately here:

  • Trailer Ubolts

  • Trailer Lift Blocks (sold separately)

  • Ubolt plates (sold separately)

FAQ

• Do you have these in stock?

  • yes, we stock many kits all the time and we ship every day worldwide.

• What length are the Ubolts provided in the kits?

  • 1" lift block kits - 7.5" inside length

  • 2" lift block kits - 8.5" inside length

  • 3" lift block kits - 9.5" inside length

    • If you need different parts than are in the kit you can buy them individually here

    • Trailer Ubolts

    • Trailer Lift Blocks (sold separately)

    • Ubolt plates (sold separately)

    • All Ubolt sales are final so please check before you order

• What material are these blocks made out of?

  • The 1" block is solid steel but we are transitioning into a cast steel block soon in 2026

  • The 2" lift block is now made from Cast Steel

  • The 3" lift block is currently fabricated 1/4" thick HSS Mild steel and welded together we are currently in designs for a Cast Steel block and will be out in the fall/winter of 2026 after all the old fabricated design's inventory is sold.

• Can you lift your trailer 3" will that damage the suspension?

  • You Can lift your trailer 3", however we do recommend installing a cross member on the back hangers to prevent side to side twisting of the rear hangers, this can lead to cracks in the welds that hold the hangers to the frame. (cross member linked here)

• How High do I need to lift my Trailer?

  • Hook up your trailer and set your towing height or 5th wheel pin height that you wish to tow your trailer at.

  • Park your truck and trailer on flat ground to measure

  • Measure the front of you trailer and the back of your trailer at the straightest most even and level part you can find. (frame, trim, seam)

  • If you are out 6" then you need a 3" block

  • If you are out 4" then you need a 2" block

  • if you are out 2" then you need a 1" block

  • Whatever measurement you raise the suspension it will (almost) double at the rear bumper depending on the set back of your axles - Toy haulers have the axles further back and don't lift as much

• What are the Torque Specs on the Ubolts?

  • 1/2" Ubolt - 60-70 Ftlbs

  • 9/16" Ubolt - 90-95 Ftlbs